A localization algorithm for strong sources of orbit motion in the APS storage ring

Author

Schwartz, C. ; Carwardine, J. ; Fors, T.

Author_Institution

Adv. Photon Source, Argonne Nat. Lab., IL, USA

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

1390

Abstract

This paper describes a semi-automatic algorithm that locates spatially discrete strong sources of storage-ring noise that cause beam motion, e.g., noisy power supplies. The algorithm parasitically uses the APS real-time orbit feedback system (RTFS) to obtain orbit data on line, and a response matrix model to compute the confidences for source candidates. It also computes the estimated spectral density of the source. Further rules-of-thumb for source identification and empirical data are also presented

Keywords

X-ray production; accelerator RF systems; electron accelerators; electron beams; high energy physics instrumentation computing; matrix algebra; particle beam diagnostics; particle beam stability; storage rings; APS real-time orbit feedback system; APS storage ring; RTFS; X-ray beams; beam motion; beam orbit motion; localization algorithm; noisy power supplies; position stability; response matrix model; semiautomatic algorithm; source identification; source spectral density; spatially discrete strong sources; storage-ring noise; Aluminum; Feedback; Laboratories; Lattices; Power supplies; Power system modeling; Real time systems; Stability; Storage rings; Structural beams;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001

Print_ISBN

0-7803-7191-7

Type

conf

DOI

10.1109/PAC.2001.986690

Filename

986690